. Author manuscript; available in PMC: 2011 Sep 22.

Published in final edited form as: J Am Chem Soc. 2010 Sep 22;132(37):12927–12940. doi: 10.1021/ja104107q

Table 2.

Kinetic and Thermodynamic Parameters for CO binding to ^DLCu^I in THF; Constants Reported at 298 K.^a

Compound	K_CO (M^-1)	ΔH°	ΔS°	k_CO (M^-1 s^-1)	ΔH^‡	ΔS^‡	k_-CO (s^-1)	ΔH^‡	ΔS^‡
^ImLCu^I-CO	(2.4 ± 0.04) × 10³	−31.4	−40.6	(2.8 ± 0.07) × 10⁹	7.03	−40.5	(1.1 ± 0.04) × 10⁶	38.5	0.1
^NMe₂LCu^I-CO	(5.0 ± 0.05) × 10³	−39.7	−62.5	(2.5 ± 0.05) × 10⁹	9.07	−34.7	(5.0 ± 0.09) × 10⁵	48.8	28
^PyLCu^I-CO	(1.2 ± 0.05) × 10⁴	−35.9	−42.6	(1.9 ± 0.02) × 10⁹	7.13	−43.3	(1.5 ± 0.04) × 10⁵	43.0	−0.7
^QLCu^I-CO	(2.2 ± 0.2) × 10⁴	−39.2	−48.5	(9.7 ± 0.1) × 10⁸	5.66	−53.9	(4.4 ± 0.01) × 10⁴	44.9	−5.3
^TBPLCu^I-CO	(1.4 ± 0.03) × 10⁴	−40.4	−56.2	(5.2 ± 0.01) × 10⁸	5.76	−58.7	(3.7 ± 0.01) × 10⁴	46.2	−2.5
^BzLCu^I-CO	(5.6 ± 0.1) × 10⁴	−46.0	−63.6	(5.0 ± 0.01) × 10⁸	0.74	−75.9	(9.0 ± 0.03) × 10³	46.8	−76

Units of kinetic and thermodynamic values are as follows: K_CO, M^-1; k_CO, M^-1 s^-1; k_–CO, s^-1; ΔH, kJ mol^-1; ΔS, J mol^-1 K^-1. See Supporting Information for Van't Hoff and Eyring plots.